6" lift T-case drop?

[Crumley]

I installed a 6" tuff country lift kit on my 72 GMC LWB. The kit came with a transfercase drop. When I installed the t-case drop spacer the angle of the engine (stock location), transmission and transfercase (1" lower) is quite steep (tilting down to rear of truck). The back of the t-case (opposite side of the front output shaft) is hitting the leading rearward edge of the t-case crossmember. Has anyone encountered this problem? How did you fix it? Or do you run your 6" lift kit without a t-case drop spacer?